How much lava can a medium sized volcano hold?

A medium-sized volcano can typically hold between 10 million to 100 million cubic meters of magma in its magma chamber, depending on its specific geology and structure. The volume of lava that can be erupted varies greatly, as only a fraction of the magma stored in the chamber may reach the surface during an eruption. Additionally, the capacity can change over time due to volcanic activity and the accumulation of magma.